X0306 4 2020-05-05 0 0000949039 DIAMOND OFFSHORE DRILLING, INC. DOFSQ 0001286832 ROLAND DAVID L 15415 KATY FREEWAY SUITE 100 HOUSTON TX 77094 0 1 0 0 SVP, General Counsel and Sec Common Stock 2020-05-05 4 S 0 30332 0.2401 D 0 D Common Stock 810.354 I By 401(k) Plan The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.24 to $0.2411, inclusive. The reporting person undertakes to provide to Diamond Offshore Drilling, Inc., any security holder of Diamond Offshore Drilling, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. Based on a plan statement as of May 5, 2020. /s/ Terence W. Waldorf Attorney-in-Fact for David L. Roland 2020-05-05